公开(公告)号：EP2466917B1

公开(公告)日：2014-12-03

申请号：EP11187298.2

申请日：2011-10-31

申请人： Sony Corporation

发明人： Noguchi, Masayoshi

IPC分类号： H04S1/00 ,  H03G3/30 ,  H03G7/00

CPC分类号： H03G7/004 ,  H03G7/002 ,  H04R5/04 ,  H04R2430/01 ,  H04S7/30 ,  H04S2400/13

公开(公告)号：EP2194732A2

公开(公告)日：2010-06-09

申请号：EP09252715.9

申请日：2009-12-01

申请人： Sony Corporation

发明人： Noguchi, Masayoshi

IPC分类号： H04S1/00 ,  H04S7/00

CPC分类号： H03G3/3005 ,  H04S1/007 ,  H04S3/008 ,  H04S7/30 ,  H04S2400/13

摘要： A sound volume correcting device includes: a variable gain unit controlling a gain of an input audio signal on the basis of a gain control signal; a voice average level detector detecting an average level of a human voice signal in the input audio signal; and a gain control signal generator generating the gain control signal for controlling the gain of the input audio signal using the average level of the human voice signal detected by the voice average level detector as a reference level and supplying the generated gain control signal to the variable gain unit.

摘要翻译： 音量校正装置包括：可变增益单元，其基于增益控制信号来控制输入音频信号的增益; 语音平均电平检测器，检测输入音频信号中的人声信号的平均电平; 以及增益控制信号发生器，其产生增益控制信号，用于使用由话音平均电平检测器检测的人声信号的平均电平作为参考电平来控制输入音频信号的增益，并将所产生的增益控制信号提供给变量 获得单位。

公开(公告)号：EP0783207A3

公开(公告)日：1999-03-24

申请号：EP96309281.2

申请日：1996-12-19

申请人： SONY CORPORATION

发明人： Noguchi, Masayoshi ,  Ichimura, Gen

IPC分类号： H03M7/00

CPC分类号： H03M7/3013

摘要： A digital signal processing method and apparatus in which no noise is produced when switching between an original sigma-delta modulated signal and a sigma-delta re-modulated signal obtained on sigma-delta modulation of the original sigma-delta modulated signal. In a digital signal processing device 1, delay line 3 delays the original sigma-delta modulated signal from an input terminal 2 by a pre-set number of samples. A sigma-delta modulator 6 sets the first-stage feedback loop to next stage feedback loop gain ratio to an integer and outputs a sigma-delta re-modulated signal. A bit length converter 5 matches the amplitude level of the original sigma-delta modulated signal entering the sigma-delta modulator 6 to the amplitude level of a feedback signal to a first-stage integrator employed in the sigma-delta modulator 6. On reception of a switching control signal S D from an input terminal 7, the digital signal processing device 1 causes a pattern coincidence detector 28 to detect pattern coincidence between the original 1-bit signal S A delayed by the delay line 3, having a number of taps corresponding to the gain ratio, and a sigma-delta re-modulated 1-bit signal S B , to output a detection signal S T . This allows a switching controller 29 to control switching of a changeover switch 4 to output a signal changed over from S A to S B at an output terminal 8.

摘要翻译： 一种数字信号处理方法和装置，当在原始Σ-Δ调制信号与在原始Σ-Δ调制信号的Σ-Δ调制之间获得的Σ-Δ重新调制信号之间进行切换时，不产生噪声。 在数字信号处理装置1中，延迟线3将来自输入端2的原始Σ-Δ调制信号延迟预定数量的采样。 Σ-Δ调制器6将第一级反馈环路设置为下一级反馈环路增益比至整数，并输出Σ-Δ重新调制信号。 比特长度转换器5使进入Σ-Δ调制器6的原始Σ-Δ调制信号的幅度电平与反馈信号的幅度电平匹配到在Σ-Δ调制器6中采用的第一级积分器。 来自输入端子7的开关控制信号SD，数字信号处理装置1使模式一致检测器28检测由延迟线3延迟的原始1位信号SA之间的模式一致性，具有对应于 增益比和Σ-Δ再调制1比特信号SB，以输出检测信号ST。 这允许切换控制器29控制切换开关4的切换，以在输出端子8处输出从SA切换到SB的信号。

公开(公告)号：EP0436114B1

公开(公告)日：1998-01-14

申请号：EP90122539.1

申请日：1990-11-26

申请人： SONY CORPORATION

发明人： Yamada, Makoto ,  Noguchi, Masayoshi ,  Ono, Junji

IPC分类号： G11B15/467

CPC分类号： G11B15/4678

公开(公告)号：EP2194733B1

公开(公告)日：2012-07-11

申请号：EP09252718.3

申请日：2009-12-02

申请人： Sony Corporation

发明人： Noguchi, Masayoshi

IPC分类号： H04S7/00

CPC分类号： H04S7/00 ,  H04S2400/05 ,  H04S2400/13

公开(公告)号：EP2219371B1

公开(公告)日：2012-04-04

申请号：EP10152994.9

申请日：2010-02-09

申请人： Sony Corporation

发明人： Noguchi, Masayoshi

IPC分类号： H04N5/60

CPC分类号： H04N5/60 ,  H03G3/3005 ,  H04N21/439 ,  H04N21/4394

摘要： A volume correction device includes: a variable gain means for controlling a gain, given to an input audio signal, according to a gain control signal; a consecutive relevant sounds interval detection means for detecting a consecutive relevant sounds interval, during which a group of temporally adjoining consecutive relevant sounds is present, in the input audio signal; a mean level detection means for detecting the mean level of the input audio signal attained during the consecutive relevant sounds interval, and whose time constant for mean level detection is set to a smaller value during the leading period of the consecutive relevant sounds interval than during the remaining period; a gain control signal production means for producing the gain control signal, so that the mean level will be equal to a reference level, and feeding the gain control signal to the variable gain means.

公开(公告)号：EP0783207B1

公开(公告)日：2009-05-20

申请号：EP96309281.2

申请日：1996-12-19

申请人： Sony Corporation

发明人： Noguchi, Masayoshi ,  Ichimura, Gen

IPC分类号： H03M7/00

CPC分类号： H03M7/3013

公开(公告)号：EP0643547B1

公开(公告)日：2001-07-18

申请号：EP94306583.9

申请日：1994-09-07

申请人： SONY CORPORATION

发明人： Ichimura, Gen ,  Noguchi, Masayoshi ,  Inomata, Yuichi

IPC分类号： H04S1/00 ,  H03H17/02

CPC分类号： H04S1/007

公开(公告)号：EP0822666A3

公开(公告)日：1999-10-06

申请号：EP97305522.1

申请日：1997-07-23

申请人： SONY CORPORATION

发明人： Noguchi, Masayoshi ,  Ichimura, Gen

IPC分类号： H03M7/00

CPC分类号： H03M7/3028 ,  G11B20/10527 ,  G11B2020/00065 ,  H03M7/304

摘要： A switching device for switching between a 1-bit digital signal ΣΔ modulated by a first sampling frequency and a 1-bit digital signal ΣΔ modulated by a second sampling frequency lower than said first sampling frequency. The 1-bit digital signal ΣΔ modulated by the second sampling frequency is transiently converted to the 1-bit digital signal ΣΔ modulated by the first sampling frequency. The converted 1-bit digital signal or the 1-bit digital signal ΣΔ modulated by the first sampling frequency is switched by cross-fading processing for realizing switching with suppressed noise generation at the time of switching.

摘要翻译： 一种用于在由第一采样频率调制的1位数字信号SIGMA DELTA和低于所述第一采样频率的第二采样频率调制的1位数字信号SIGMA DELTA之间切换的开关装置。 由第二采样频率调制的1位数字信号SIGMA DELTA被瞬时转换为由第一采样频率调制的1位数字信号SIGMA DELTA。 由第一采样频率调制的转换的1位数字信号或1位数字信号SIGMA DELTA通过交叉衰减处理来切换，以实现在切换时抑制的噪声产生的切换。

公开(公告)号：EP0822666A2

公开(公告)日：1998-02-04

申请号：EP97305522.1

申请日：1997-07-23

申请人： SONY CORPORATION

发明人： Noguchi, Masayoshi ,  Ichimura, Gen

IPC分类号： H03M7/00

CPC分类号： H03M7/3028 ,  G11B20/10527 ,  G11B2020/00065 ,  H03M7/304

摘要： A switching device for switching between a 1-bit digital signal ΣΔ modulated by a first sampling frequency and a 1-bit digital signal ΣΔ modulated by a second sampling frequency lower than said first sampling frequency. The 1-bit digital signal ΣΔ modulated by the second sampling frequency is transiently converted to the 1-bit digital signal ΣΔ modulated by the first sampling frequency. The converted 1-bit digital signal or the 1-bit digital signal ΣΔ modulated by the first sampling frequency is switched by cross-fading processing for realizing switching with suppressed noise generation at the time of switching.